//
// demonstration program for variable length arrays
// Barbara Z. Johnson
//
#include <stdio.h>

int main() {

  int arr_size = 0;  // initialize

  printf("Number of elements? ");
  scanf("%d", &arr_size);

  int int_arr[arr_size];

  for (int i = 0; i < arr_size; i++) {
    int_arr[i] = 2 * i;
    printf("%d ", int_arr[i]);

  }

  printf("\n");

  return 0;

}